ComingSoon.net reports that Batman Begins had no trouble staying on top of the box office:

Warner Bros. Pictures’ Batman Begins dipped just 45.1% in its second weekend and added $26.8 million to remain atop the box office. The $150 million-budgeted comic book adaptation, directed by Christopher Nolan, has earned $121.7 million in 12 days. The film has also grossed $83.4 million overseas, for a $205.1 million worldwide total so far.